FUEL TANK HIGH LEVEL SENSOR IS A SINGLE POINT FLOAT WITH A NORMALLY CLOSED CONTACT THAT PROVIDES CONTINUOUS COMMUNICATIONS TO THE MONITORING DEVICE. THE HIGH LEVEL SENSOR IS MAKE OF STAINLESS STEEL CONSTRUCTION PRE-MOUNTED TO A 2" STAINLESS STEEL TANK ADJUSTABLE MOUNT. THE SENSOR IS SIZED ACCORDANTLY TO FIT YOUR TANK AND TO BE ALARMED AT TYPICALLY 90% OR 95% OF YOU TANKS CAPACITY.